Bobbin-stripper.



115. 869,856. PATENTED 001,29, 1907.

W. B. LEATHERS.

BOBBIN STRIPPER.

5 a strum-sum 1.

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WITNESSES: fi [NVEN A TTORNE Y5 No. 869,856. PATENTED 00129. 1907. w. B. LEATHERS.

- BOBBI'N STRIPPER.

APPLICATION FILED JUNE 5.1906.

3 SHEETS8HEET 2.

A TTORNE Y5 No. 869,856. PATENTED 001. 29. 1907. w. B. LEATHERS.

BOBBIN STRIPBER. v lAPI L IOATION FILED mm: 6,1906.

Wmijlmiizeni v A TTORNE Y5 INVENTOR. I

' tion over the holder.

WARNER B. LEATHERS, OF

NEW HOLLAND, GEORGIA.

BOBIBIN-STRIBPER.

Specification of. Letters Patent.

Patented Oct. 29', 1907.

Application filed June 5. 1906- Serial No. 320296.

To all whom it may concern:

Be it known that I, WARNER B. LEATHERS, a citizen of the United States, residing at New Holland, in the county of Hall and State of Georgia, have invented a new and useful BobbinStripper, of which the following is a specification.

This invention relates to machines for stripping bobbins.

The principal object of the invention is to provide a machine by which bobbins as they come from the loom with more or less turns of yarn adhering thereto, may be stripped before being placed in the spinning frame.

A further object of the invention is to provide a device of this class in which the operation of stripping rendered automatic.

A still further object of the invention is to provide a stripping machine to which the bobbins may be fed in bulk, the machine separating the single bobbins and stripping and delivering the same in successive order.

A still further object of the invention is to provide a machine of this class in which the yarn may be stripped without cutting the same as ordinarily practiced where the yarn is removed by hand, it being usual to employ a cutting knife for severing the yarn, especially where the latter is wound on straight bobbins.

With these and other objects in view, as will more fully hereinafter appear, the invention consists in cer tain novel features of construction and arrangement of parts, hereinaiter fully described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the form, proportions, size and minor details of the structure may be made without departing from the spirit or sacrificing any of the advantages of the invention.

In the accompanying drawings:Figure 1 is a plan view of a bobbin stripping machine'constructed in accordance with the invention.- Fig. 2 is a transverse sectional view of the same on the line 22 of Fig. 1. Fig. 3 is a longitudinal section of the machine on the line 3-3 of Fig. 1. Fig. '4 a transverse section of the machine on the line 4-4 of Fig. 1, showing more partic ularly the mechanism for removing the stripped bobbins from the machine. Fig. 5 is a detail perspective view of the grippers by which the single bobbins are removed from the feeding disks and carried to a posi- Fig. 6 is a similar view of the bob bin holder, parts being broken away in order to more clearly illustrate the construction. Fig. 7 is a detail perspective view of the stripping mechanism, detached. Fig. 8 is a detail view on an enlarged scale illustrating the bobbin stripping operation.

Similar numerals ,of reference are employed to indicate corresponding parts throughout the several figures of the drawings.

The working parts of the machine are supported on a suitable frame 10, that has bearings for amain shalt 11 and a crank shaft 12, the shaft 11 receiving motion from any suitable source of power, and being connected by gears 13 of equal diameter to the cam shaft 12.

The bobbins as they come from the loom are thrown into a chute 15 and run by gravity against-a pair of feeding wheels or disks 16, that are mounted on a shaft 17 supported by bearing brackets 18. These wheels or disks have peripheral notches 19, each pair of notches being arranged to receive a single bobbin, and as the disks rotate in the direction'indicated by the arrow in Fig. 2, the bobbins willfall into the successive notches,

and will be carried around under a guard 20, the latter being in the form of an arcuate plate having terminal spring fingers 21 which lightly engage and hold the bobbin at the point where the latter is to be delivered from the disks. I, I

The shaft 17 also carries a ratchet wheel 22 having teeth of arinmber corresponding to the number of notches in each disk, and these teeth are engaged by a pawl 23 that is carried by a rocker arm 24 rigidly secured to a rock shaft 25, the latter-also finding bearings in the bracket 18. At each movement of the rock shaft, the ratchet wheel is advanced to the extent of a single tooth, and another set; of notches 19 is arranged in position to receive the bobbin from the chute l5.

Secured to the shaft 25 is a pair of curvedfeeding fingers 26 to the outer end. of each of which is pivoted a spring actuated clamp 27. The clamp and the finger are provided with mating notches 28 to receive a bobbin, and the ends of the finger and the clamp have tapered walls 29 for the purpose of guiding the bobbin into said recesses. As therock shaft 25 is moved in one direction, it.will carry the feeding fingers 26 back underthe shieldor guard 20, and at the'same time the pawl 23 will turn the ratchet wheel, and the two disks will be moved to an extent sufficient to bring a bobbin in alinement with spring fingers 21. On movement in the opposite direction, the feeding fingers will engage with the bobbin which has been previously adjusted to position, and the clamps 27 will yield until the bobbin is received in the recesses 28, and then the fingers 21 will yield, the bobbin being carried downward to a position over the bobbin carrying slide 30.

The slide .30 is approximately rectangular in general contour, and in the present instance is shown as formed of three parallel bars 31, 32 and 33, the bar 31 having a dove-tailed rib 34 on its rear face which engages in a dove-tailed groove formed in a horizontally disposed bar 36 carried by the frame. The opposite ends of the two bars 32 and 33 are connected by short plates 38 and 39, and one of these plates, 39, cairies a small spring 40,, the free end of which projects over the top of the plate in position to receive the smallest end of the bobbin, as clearly shown in Fig. 6.

by the pins 41. The clamping faces of the lingers 42' are preferably slightly serrated in order that they may firmlygrip the bobbin and hold the same durlng the stripping operation. I

The two bars 31 and 32 are connected by a pin 45 and said pin is connected by a pitman 46 to a crank' pin 47 carried by a pair of cranks 48 on the main.

shaft 11, this mechanism serving to effect reciprocatory movement of the bobbin carrier between the bobbin receiving and bobbin discharging points.

When the bobbin carrier is at the receiving point, the crankis on one dead center, so that there will be littleor no movement of the bobbin carrier during the time the bobbin isbeing forced there'into, and in order that the operation may be quickly accomr plished, a pair of compression fingers 50 are arranged tQe e -e with the bobbin held by the feeding fingers 26: and force the same from the fingers down into plh'be' between the spring and the spring held s42. These fingers are carried by a vertically ided bar 51 that is moved by a quick operating cam 52 on the shaft12,,the bar 51 being provided with a pair ei springs or anti-friction rollers 53, be-

. vrtvveen which e cam' plays.

.After" the b bih has been placed on the carrier, the latter is mbved toward. discharging position, and during this movement't h'e yarn is stripped therefrom.

The stripping fingers 56' and 57 are carried, respec- .tively, by crank shafts 58 and'59, the ends of which are journaled in suitable supports on, or forming a part of 40 the'fra'me. These crank shafts are provided with arms 60 and61, respectively, and saidarms are drawn to 7 by a: coiled tension spring 62 for the purpose offholding-the stripping fingers separated. The-arm .SOiis continued to the oppositeside of the shaft 58, to form an arm 63, and the twoarmsfil and 63 are con- .nected by links 64 to one end of a lever 65, the oppoi .site end of the lever being pivoted to a bracket 66 carried by the frame. This lever is operated bya cam 67 on the shaft;12, the function of the cam being to draw I the stripping fingers together aroundthe bobbin. The bobbin engagingends of these stripping fingers are preflerablycurved transversely, sothat a large portion of the periphery of the-bobbin may lie-engaged thereby,

' 76 on the shaft 12. As siinihsthe bobbin reaches the es and as ,the bflb l wnbetween' the 'fi g rfl the yam will be stripped th r A i As the -bobbin "reaches the'discharge position, it

moves" under a pair ofcurveddischarg'ing fingers 70, that are carriedby a rock'- shaft71, said shaft being on gaged by a torsion spring 72 hat tends normally to maintain-said fingers injelevatedposition. The rock shaft carriesa rocker arm 7 ,disposed in the path 10f movement of a lugi'M that isjcarried 'by a vertically movable bar 75; "thell atter'"being: operated by a cam discharge position, the'cam 'actsand raises the bar75,

=mcmber, and means for as the disks rotate, a single bobbin may enter the notches 19. The bdbbins are carried around under the guard 20, and when a bobbin reaches a position adjacent to the spring fingers 21, a cam 80 on the shaft 12 operates a rod 8]. that is connected to a rocker arm 82 on the shaft 25, and the feeding fingers 26 are moved forward, so that the bobbin will be engaged and held in the recesses 28. When this position is reached, the fingers 50 act, and in moving downward, the bobbin is forced from the feeding fingers into position between the clamps 40 and 42. The fingers 50 are then elevated and as the fingers 26 move rearward, the rock shaft '25 will, also, carry the rocker arm 24, and the pawl 23 will engage the teeth of the ratchet wh eel 22, advancing the ratchet wheel to the extent of a single tooth, and feeding another bobbin to position adjacent the spring fingers 21 During the return movement of these parts, the bobbin carrier is moved forward, and as it passes between the stripping fingers, the latter will be moved toward each other, and will engage and strip the threads from the bobbin, while on reaching the discharge posi-. tion, finger will act to force the bobbin from the car- .rier.

With a deviceconstructed in accordance with this invention, the slow and laborious hand operations are avoided, and the bobbins are' not injured by the cu tting of the thread, or broken by knocking of. the ends of the bobbins-against a table or other surface, a sually member, a bobbin carrier", and means for feeding the carrier audits bobbin past said member.

2.- In a device of the class specified, a plurality of stripping members arranged to engage against the opposite sides of a bobbin, a bobbin carrier, means for' feedlng bobbins thereto,. means for efiectlng relative movement of the carrier and stripping-members, and means for d1slodgm the bobbin from the. carrier. 1 3. In a device of the class specified, abobbln carrier, a stripping member, means for moving the carrier past said dlslodglng the bobbin from the car-- rier.

' 4. In a devlce of the. class described, a, bobbin carrier,

means for feeding bobbins thereto, austrlpplngmember,

'I'neuns'for moving the carrier past said stripping member, andmeans for dlslndglng the bobbin from the carrier.

5: In a device of the class specified, a 'reclprocatory bobbin carrier movable between a receiving andnardiseharge point, means for feeding bobbins to the cart-let, means for.

dislodging the bobbins, and s. stripper arranged between said receiving and discharge points.

6. In a device of the class'described, a movable bobbin; carrier, means for automatically feeding bobbins thereto,"

- a stripper, meanstor moving the carrier pa'st the-stripper,

and means for dlslodglng the bobbin.

In, a machine of the class described, .abobbin carrier,

bobbins from the fingers into the carrier, a stripper, means for moving the carrier past the stripper, and means for dislodging the bobbin from .the carrier.

8. In a machine of the class described, a bobbin carrier, 11 pair of revoiuble disks having bobbin r eiving notches,

the same to engage and carry the successive bobbins from the disks to the carrier, means for forcing the bobbins from the fingers into the carrier, llstripper, means for moving the carrier past the stripper, and means for dislodging the bobbin from the carrier.

yieldable guard fingers for maintaining the bobbins in the notches, a shaft carrying the disks, a ratchet wheel on said shaft, feeding ringers arranged to engage and remove shaft and arranged to engage and carry the successive hobbinsirom the disks to the carrier,

and means for dislodging the bobbins from the carrier.

11. in a machine of the class described, the combination with a bobbin carrier, of a pair of notched bobbin receiving disks, spring guard fingers for holding the bobbins in the disks, a supply chute through which the disks move, a shaft carrying the disks, a ratchet wheel on said shaft, :1 rock shaft, a pair of clamping fingers carried by the rock shaft and provided with movable clamps, said fingers and clamps being arranged to engage and carry the bobbins from the disks to the bobbin carrier, a rocker arm on said rock shaft, a ratchet wheel engaging pawl on said rocker arm, a stripper, means for moving the carrier pastfihe stripper, and means for (iisloiiging the'bobbins from the carrier.

j from said shafts, a spring connecting with a stripper,

oted to the finger and having a mating recess, the adjacent to permit the pasmeans for presenting ger, means for forcing the bobbins from the finger into the carrier, a stripper, means for moving the carrier past the stripper, and means for dislodging the bobbins from the carrier.

13. In a machine of the class described,'a bobbin carrier, a pair of stripper fingers having transversely curved bobbin engaging ends, means for opening the fingers to permit the passage of the carrier, means for closing the tingers on the bobbin, and means for dislodging the bobbin from the carrier.

14. in a machine of the class described, the combination with a bobbin carrier, a pair of crank shafts, stripping the arms and tending to open the fingers, cam actuated links .connected to the shafts and arranged to close the fingers on the bobbin, means-for moving the carrier past the stripping fingers, and means for dislodging the bobbins from the carrier.

15. in a machine of the class described, the combination of a reciprocatory bobbin carrier, spring thereby and arranged to engage the bobbin, and means for automatically dislodging the bobbin.

17. In a machine of ,the class described, a stripper, a bobbin carrier, a leaf spring engaging the smaller end of the bobbin, and a pair of spring actuated clamping fingers for engaging the large end of the bobbin.

15, In a machine of the class described, the combination with a stripper, of a bobbin carrier open at top and bottom, means for inserting a bobbin through the open top of the carrier,

bottom of the carrier.

in testimony that I claim the foregoing as my own, I have hereto aifixed my signature in the presence of two witnesses.

WARNER Bl LEATHERS. 

